ductwork layout

[bsblindab]

We have a 2011 3665RE. Was looking under the steps and noticed one of the ventwork was off the ductwork that went to the back bedroom. Went under and re-taped it back up (funny no sheetmetal screws) Anyway..in the furnace I see 3 ducts coming out. One going up to the heater vent that goes to the back of the RV..One smaller ductwork that goes to the bathroom Duct..and then a smaller ductwork that goes over to the middle of the rv and down a hole to the underside where the holding tanks go..Nothing on the end..the storage area has a vent..but nothing attached..Is that what they meat by "heated storage area..takes the heat from that duct and flows through it? how the heck does the heat get from the furnace to the kitchen and LR areas?? didn't see anything for that.
Does anyone have a diagram of the heat ductwork?

[Lenny K]

The heat that gets from the furnace to the kitchen and LR areas comes off of the large ductwork that goes to the rear of the trailer.

The duct that runs to the underside where the holding tanks are does not have anything hooked up to it. The air flows in freely to keep the tanks from freezing.

The storage area vent does not have anything hooked to it either and any heat that gets into the storage area is from the interior of the trailer.

I don't think there is such a thing as a diagram for your ductwork. You'll just have to look around to see as we all had to.

[bsblindab]

So what I'm seeing is correct then?? wow.

I figured there was ductwork tothe LR/Kitchen area..but couldn't see
1) the ductwork..or
2) how it was attached to the furnace.

[Lenny K]

What you see is what you get...lol.

[dieselguy]

You should have a rectangular duct running under your main floor with 2-3 registers in the floor itself. There should also be a floor register in your bedroom fed by a floor duct. Then the bathroom and underbelly small ducts you already mentioned.

[jcurtis934]

X2 what diesel guy said. Your furnace has a bottom connector in the heat exchanger and this sits on top of the metal duct that runs to the rear of the fiver.

[bgjon56]

Originally Posted by dieselguy

You should have a rectangular duct running under your main floor with 2-3 registers in the floor itself. There should also be a floor register in your bedroom fed by a floor duct. Then the bathroom and underbelly small ducts you already mentioned.

So if there is duct that runs under the main floor, are there and connections that go to the floor registers. The one furthest away from the furnace blows really good but the one closest hardly anything. Don’t know where or how to see if it came loose or needs repaired.

[Carl n Susan]

The ducts are cut into the raceway. No connecting duct work to come loose. It is normal for the furthest duct to emit more air than the closer one. I don't know why, but my HVAC guy said it was the way it is. It might be that there are no diverters into the duct work to direct air up through the floor duct?